package irc import ( "code.google.com/p/go.crypto/bcrypt" "encoding/base64" "errors" ) var ( EmptyPasswordError = errors.New("empty password") ) func GenerateEncodedPassword(passwd string) (encoded string, err error) { if passwd == "" { err = EmptyPasswordError return } bcrypted, err := bcrypt.GenerateFromPassword([]byte(passwd), bcrypt.MinCost) if err != nil { return } encoded = base64.StdEncoding.EncodeToString(bcrypted) return } func DecodePassword(encoded string) (decoded []byte, err error) { if encoded == "" { err = EmptyPasswordError return } decoded, err = base64.StdEncoding.DecodeString(encoded) return } func ComparePassword(hash, password []byte) error { return bcrypt.CompareHashAndPassword(hash, password) }